1k citations · 2.5k across the 29 of their papers we have counts for
29 papers
Resonant elastic X-ray scattering of antiferromagnetic superstructures in EuPtSi
Wolfgang Simeth, Andreas Bauer, Christian Franz +6
We report resonant elastic X-ray scattering (REXS) of long-range magnetic order in EuPtSi, combining different scattering geometries with full linear polarization anal…
Low-temperature antiferromagnetic order in orthorhombic CePdAl
Vivek Kumar, Andreas Bauer, Christian Franz +6
We report the magnetization, ac susceptibility, and specific heat of optically float-zoned single crystals of CePdAl. In comparison to the properties of polycrystalline CePdA…
Evolution of the spin dynamics during freezing in the spin-glass FeCr
Steffen Säubert, Christian Franz, Johanna K. Jochum +5
In the iron--chromium system, FeCr, a wide dome of spin-glass behavior emerges when the ferromagnetism of iron is suppressed and the antiferromagnetism of chromium em…
MIASANS at the longitudinal neutron resonant spin-echo spectrometer RESEDA
J. C. Leiner, C. Franz, J. K. Jochum +1
The RESEDA (Resonant Spin-Echo for Diverse Applications) instrument has been optimized for neutron scattering measurements of quasi-elastic and inelastic processes over a wide para…
Extending MIEZE spectroscopy towards thermal wavelengths
Johanna K. Jochum, Christian Franz, Thomas Keller +1
We propose a Modulation of intensity with zero effort (MIEZE) set-up for high-resolution neutron spectroscopy at momentum transfers up to 3Å,energy transfers up to ~ 20 meV,…
Magnetic properties of the noncentrosymmetric tetragonal antiferromagnet EuPtSi
A. Bauer, A. Senyshyn, R. Bozhanova +6
We report a comprehensive study of single crystals of the noncentrosymmetric rare-earth compound EuPtSi grown by the optical floating-zone technique. Measurements of the magn…
Topological magnon band structure of emergent Landau levels in a skyrmion lattice
T. Weber, D. M. Fobes, J. Waizner +16
The motion of a spin excitation across topologically non-trivial magnetic order exhibits a deflection that is analogous to the effect of the Lorentz force on an electrically charge…
Incommensurate antiferromagnetic order in CePtAl
M. Stekiel, P. Cermak, C. Franz +9
We report a neutron diffraction study of single-crystal CePtAl complemented by measurements of the specific heat under applied magnetic field. Below =3 K CePtAl$_…
MIEZE Neutron Spin-Echo Spectroscopy of Strongly Correlated Electron Systems
Christian Franz, Steffen Säubert, Andreas Wendl +8
Recent progress in neutron spin-echo spectroscopy by means of longitudinal Modulation of IntEnsity with Zero Effort (MIEZE) is reviewed. Key technical characteristics are summarize…
Optimized signal deduction procedure for the MIEZE spectroscopy technique
J. K. Jochum, L. Spitz, C. Franz +4
We report a method to determine the phase and amplitude of sinusoidally modulated event rates, binned into four bins per oscillation, based on data generated at the resonant neutro…
Oscillatory magnetic fields for neutron resonance spin-echo spectroscopy
J. K. Jochum, A. Hecht, O. Soltwedel +6
The generation of high frequency oscillatory magnetic fields represents a fundamental component underlying the successful implementation of neutron resonant spin-echo spectrometers…
Weak crystallization of fluctuating skyrmion textures in MnSi
J. Kindervater, I. Stasinopoulos, A. Bauer +8
We report an experimental study of the emergence of non-trivial topological winding and long-range order across the paramagnetic to skyrmion lattice transition in the transition me…
Magnetoelastic hybrid excitations in CeAuAl
Petr Čermák, Astrid Schneidewind, Benqiong Liu +5
The interactions between elementary excitations such as phonons, plasmons, magnons, or particle-hole pairs, drive emergent functionalities and electronic instabilities such as mult…
Lattice dynamics and coupled quadrupole-phonon excitations in CeAuAl
B. -Q. Liu, P. Čermák, C. Franz +2
We report first principles calculations of the structural parameters and phonon dispersion of the tetragonal non-centrosymmetric heavy fermion compound CeAuAl. Taking into acco…
Local atomic arrangement in LaCuAl3 and LaAuAl3 by NMR and density functional theory
Vojtech Chlan, Petr Dolezal, Rachel Sgallova +2
CeCuAl3 and CeAuAl3, crystallizing in the non-centrosymmetric BaNiSn3 tetragonal structure, are known mainly for their unusual neutron scattering spectra involving additional excit…
Ultra-High Resolution Neutron Spectroscopy of Low-Energy Spin Dynamics in UGe
F. Haslbeck, S. Säubert, M. Seifert +9
Studying the prototypical ferromagnetic superconductor UGe we demonstrate the potential of the Modulated IntEnsity by Zero Effort (MIEZE) technique---a novel neutron spectrosco…
Ultra-high vacuum compatible preparation chain for intermetallic compounds
A. Bauer, G. Benka, A. Regnat +2
We report the development of a versatile material preparation chain for intermetallic compounds that focuses on the realization of a high-purity growth environment. The preparation…
Single crystal growth of CeTAl (T = Cu, Ag, Au, Pd and Pt)
C. Franz, A. Senyshyn, A. Regnat +8
We report single crystal growth of the series of CeTAl compounds with T = Cu, Ag, Au, Pd and Pt by means of optical float zoning. High crystalline quality was confirmed in a th…
On/off switching of bit readout in bias-enhanced tunnel magneto-Seebeck effect
Alexander Boehnke, Marius Milnikel, Marvin Walter +8
Thermoelectric effects in magnetic tunnel junctions are currently an attractive research topic. Here, we demonstrate that the tunnel magneto-Seebeck effect (TMS) in CoFeB/MgO/CoFeB…
Real-Space and Reciprocal-Space Berry Phases in the Hall Effect of MnFeSi
C. Franz, F. Freimuth, A. Bauer +8
We report an experimental and computational study of the Hall effect in MnFeSi, as complemented by measurements in MnCoSi, when helimagn…
Formation of a topological non-Fermi liquid in MnSi
R. Ritz, M. Halder, M. Wagner +3
Fermi liquid theory provides a remarkably powerful framework for the description of the conduction electrons in metals and their ordering phenomena, such as superconductivity, ferr…
Giant generic topological Hall resistivity of MnSi under pressure
R. Ritz, M. Halder, C. Franz +5
We report detailed low temperature magnetotransport and magnetization measurements in MnSi under pressures up to . Tracking the role of sample quality, pressure…
Thermal spin-transfer torque in magnetic tunnel junctions
Christian Heiliger, Michael Czerner
The thermal spin-transfer torque (TSTT) is an effect to switch the magnetic free layer in a magnetic tunnel junction by a temperature gradient only. We present ab initio calculatio…
Band Structure and Effective Masses of ZnMgO
Christian Franz, Marcel Giar, Markus Heinemann +2
We analyze the influence of the Mg concentration on several important properties of the band structure of ZnMgO alloys in wurtzite structure using ab initio calculations. For this…